Richard



E- I mma Hed @MZ J1/cg fG/Mev 2. l: mmm

. w WWW s @writer tats-atmt @ifi-rr.

RioHARD o; LAMBERT, er1-narrante MASSAcnUSr-.rrs ASSIGNOR 'ro DavieWorms-nenn.

Letters Patent No. 76,207, dated film-ck 3l, 1868A,

dige tlph'nlt tiziana in in time lrttets atat mrt mating pitt nt tigeanni.

T0 ALL WHOM IT MAY OONCERN:

Be it known that l, RGHRD C. LAMBERT, of Raynham, inthc'county. of`Bristol,and-State of Massachusetts, have invented anew and usefulHeel-Gutting Machine; and Idohcreby declaro the following to .be a fullandcorrect description of thc same, reference beinghad to theaccompanying drawings, in which- Figure 1 is a perspective viewofthe'ma'chine complete. .Figure 2 is afhorizontal section through theaxis of the jack; and

Figures 3 and 4 are detail views. This invention consists of amachinefor cutting` heels of boots and shoes, in which 'both oscillating andreciprocating movements are imparted toa jack of novel construction,which holds the shoe, Iand gives it the l proper movements, While theheel is presented to theaction o'f an adjustable knife, which cuts it ina superior manner.y It furthervcons'ists in variousdetails ofconstruction hereinafter more particularly set forth.

To enable others skilled in the art to make Iand usemy improvedheel-cutting machine, Lwill proceed tov .describe its constructionandoperation, referringto thedrawings, on 'which the same letter ofreference indicates. the same partwherever it occurs.

A marks th'e frame of the machine; B, a winch, indicating the pointcfapplication of the driving-power; C,a pinion attached to the shaft ofthe winch B, and meshing into the toothed wheel D,vwhich engages withtoothed segment E', the a'xis of which `forms the 4centre of rotationof'tbe jack'. Its journals turn in proper boxes in the slidinlgblock` F.Attached to the faceof the toothed segmentE is the frame Gr of the jack,which oscillates upon thejournals g g, (see tig.' 2,) describing a halfcircle at each oscillation. v H is the heel-pattern,

ivhich serves inrpart to guide lthe operzition of the knife.' Its-centreofnotation coincides with the centre of rotation of the segment Rand toit isv attached the heel to be trimmed. I I mark the toe-clamp,themovable jaw I' being hingedto the xedjaw I, and operated by means ofa screw, J, which. fixes it at any desired position. The heel N beingattached, as before described, the'toe ofthe boot or shoe is receivedbetween thejaws of this clamp, and iirmly heldin place during thecutting-operation` on the heel. .The clamp slides on the arm G of thejack, toward s or from thepattern H, and is fixed by a set-screw, toadjustiit to the length of the boot' or shoe beingoperated upon. Onajhollow arm, k, 'of the jack-frame G, turns an adjusting-wheel, K, theinside of the nave o f which is threaded, (see tig. 2,) 12o-receive ascrew, L, which is dra-Wn in or thrust out by turning the wheel K, tochuck the shoe M on the pattern I-I, o'r to release it, as may berequired. From the sides' of the jack-frame project studs pp', which-runin the guide-Ways P. Q marks an oscillating-lever, (see fig. 3,) whoseotlicc is fto raise the slide R at the proper times to release the slideF, and allow it to move forward or back, in the ways P, :xs-the case maybe. .The lever Q' is pivot'ed to the slide R by -the-pin g. Its fulcrumis alternately on the pins t and t. The slide Rriscs and falls in guidesattached to the main frame. It has a slot, s, in it which receives apin, which, by means of 'the washer r, holdsy the slide in place', whileallowing it vertical movement. A spring,v S,'presses .tlie 'slide-Rdown, forcing itinto the m'ortise e in theslide F,.for the purpose ofholding that slide tirmly iixed while the jack oscillates upon its axis.The movement of the slide `F is limited in either direction, by thestop-pins t t', against which the pins b strike when -the slide is to bearrested. T

is a. bent lever, by which the knife isA controlled. It is pivoted at uto the stanchion v, which is pivoted `to and turns horizontally Vonthe'frame A. It isconnected by links w witlrthe slide W, to which theknife-stock AX is attached. The knife Y, (see Eg. 4,) is connected `tothe stock Aby means of the two guides x y. They serve to guide andsteady the knife during the cutting-operation, one of them, fr, runningin the rand of the shoe, and

the other, y, Working in contact.. with 4the heel-pattern H\r spring,z', pressing the lever T upwards, throws the knife out of Contact Withthe heel, except when the lever isdepressed by the hand ofthe Workman.The construction illustrated in-g. 3 is thesame on both sides ofthemachine, and the operation of the correspond-Y ing parts is similar andsimultaneous on the two sides. lThe horizontal portion of the guide-WaysP is essential to the operation `of the machine, but the s emicircularportieri of these waysis not indispensable, and may' be removed ifpreferred.

The operation of the machine is as follows.: The shoe is jacked byplacing the centre of the heel on the pin in the centre of the patternH, and clamping the toe between the jaws I and I. `At the beginning'othe operation, the jack-frame i: in a horizontal position, the toe ofthe s'hoe heingtowards the back part of' the machine, and the slides Fin the most advanced position towards the front of the machine, thelevers Q having .released therefrom the slides R. The lever '.l is thendepressed bythe workman, until the knife Y is brought into the .properposition to'begin thevcut, and motion is imparted to the jack. Theslide'I" moves back till the mortise e comes under the slide R, whichfalls into it, andvixes the centre of oscillation of thejnck. At thesame instant the studs p p enter the semicircular portion of the ways P,and passing around it to thel'orwnrd end ot' the are, impart a rotarymovement to the heel N, which is finished by the operation as to itscircular portion. The studs j) 22 now enter the forward end of thehorizontal portion of the ways I), when the pins b b, striking theforward ends of levers Q raise them and throw the slides R ont of themortises z in the slides I", which, thus released, slide baci: until thepins Z211 come into contact with the pins t t', and arrest the movement.By this horizontal movement the last side of the heel is finished, andthe work is completed. The lever 'I is then released, theknife is thrownup out ot' contact with the heel by the spring the shoe is released fromthe jack by a turn of wheel K, another lshoe isjaeked, and thejack-frame thrown back to its first position, 'ready for a repetition ofthe operation.

I'Iaving thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

l. A heel-cutting machine, having a swinging and sliding jack,'eonstrncted'and operatingl substantially in the manner described. l

2. The combination and arrangementv of the toothed segment E, driven asdescribed, the sliding journalblock F, and the jack-'frame G,constructed andoperating as specied.

3. '.lhexnode described of jacking the shoe or boot by means of thescrew L, operated as described, which holds the heel against the patternH, and the jaw-clamp I I', which contines the toe, as set forth.

4. The manner of automatically releasing and fixing the centre of4oscillation of the jack by means of the levers Q, operated by the pins oIi', and raising and lowering the sliding stop R, as specified.

v5. In combinationwith the knife-stock, the guides m y, one running inthe rand of the shoe, and the other in contact with the edge of thepattern H, as described.

6. In combination with the swinging jack-frame, the wheel K, and screwL, constructed, arranged, and operating as specified. l

7. In combination withthe swinging and sldingjackG, the guide-ways P,for guiding and steadying the 4horizontal and oscillating movements ofthejack, as set forth.

8. The combination of the lever T, pivoted and operated as described,with the ways W ofthe knifestock, to give both horizontal and verticalmovements to theknife, as specified.

9. The toe-clamp I I', constructed, arranged, and operating asdescribed.

The above specification of' my said invention, signed and witnessed atBoston, this ninth day ot January, A. D. 1868.

RICHARD C. LAMBERT.

Witnesses:

WILLIAM C. CLEVELAND, CHAs. F. STANSBURY.

